Roadbed working machine



June 9, 1931. c. JACKSON ROADBED WORKING MACHINE Filed Aug. 22, 1930 INVENTOR BY kg Gorwz'll c/Zcson Patented June 9, 1931 rice:

ROADBED WURKING MACHINE Application filed August 22, 1930. Serial No. 476,991.

In the proper maintenance of railway roadbeds the present practice is to re-work the ballast to clean and improve the drainage, and also to properly position the ballast.

6 This is commonly performed by manual labor and it is the main object of this invention to provide a machine which will loosen the ballast and work it back to proper position.

A further object is to provide a machine of this character which is efficient and of large capacity, and easily operated.

Objects pertaining to details and economies of my invention will definitely appear from 1 the description to follow. The invention is defined in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawings, in which:

2 Fig. 1 is a vertical transverse section of a machine embodying thefeatures of my invention, parts being broken away to disclose structuraldetails and only such parts of the machine being shown as are deemed neces- 25 sary for an understanding of my improvements.

Fig. 2 is a fragmentary view in vertical section on line 2-2 of Fig. 1.

In the accompanying drawings 1 represents a tie of a railway track and 2 the rails. The ballast is not illustrated.

I provide a truck designated generally by the numeral 8 provided with wheels 4; adapted to travel on the rails 2, only two of the truck wheels being illustrated. The truck is provided with upright ways 5 for the crosshead 6. This crosshead constitutes a drop hammer and is elevated by the chains '4 which have rollers 8 thereon at spaced intervals adapted to engage the lifting lugs 9 yielcingly supported on the crosshead by means of the springs 10. The means for driving the chains 7 are not illustrated.

As the rollers 8 are carried around the lower sprocket 11 on their upward travel they engage the lugs, thereby lifting the crosshead until the rollers are shifted laterally in passing around the top sprocket 12, and pass out from under the lugs allowing the crosshead to drop. The crosshead has recesses 13 on its under side adapted to receive therails 2. The crosshead also has downwardly facing sockets let arranged in inwardly stepped relation.

The tools 15 are engaged in these sockets 14 and secured therein by means of the pins 16. The tools are inclined inwardly and downwardly and are arranged in oppositely facing sets. They are preferably provided with central rib-like cutters 17.

With this arrangement, upon actuation of the crosshead, the tools strike the ballast, efiiectively loosening the same and gradually moving it'inwardly. The points of the tools being arranged in stepped relation, they do not all engage at the same time; and, further, they act efiectively on crowned roadbedsand also to produce a crown in roadbeds that are substantially flat. I

My improved roadbed working machine is highly eflicientin the loosening and positioning of the ballast and accomplishes the work of a large number of men.

Having thus described my invention what I claim as new and desireto secure by Letters Patent is:

1. In a machine of the class described, the combination of a truck adapted to travel upon a' railway track, vertical ways on said truck, a crosshead constituting a drop hammer reciprocatingly mounted in said ways and recessed on its under side to receive the rails of a track, said. crosshead having clownwardly facing sockets'therein at each side of the recesses disposed in inwardly stepped relation, downwardly and inwardly projecting blade-like tools disposed in said sockets in inwardly facing sets, said tools having vertical central rib-like cutters, and means for actuating said crosshead.

2.. In a machine of the class described, the combination of a truck adapted to travel upon a railway track, vertical ways on said truck, a crosshead constituting a drop hammer reciprocatingly mounted in said ways and recessed on its under side to receive the rails of a track, said crosshead having downwardly facing sockets therein at each side of the recesses disposed in inwardly steppedrelation, downwardly and inwardly projecting blade-like tools disposed in said sockets in inwardly facing sets, and means for actuating said crosshead.

3. In a machine of the class described, the combination of a truck adapted to travel upon a railway track, vertical ways on said truck, a crosshead constituting a drop hammer reciprocatingly mounted in said ways and recessed on its under side to receive the rails of a track, said crosshead having clownwardly facing sockets therein at each side of the recesses, downwardly and inwardly projecting blade-like tools disposed in said sockets in inwardly facing sets, said tools havin vertical rib-like cutters and means for actuating said crosshead.

4. In a machine of the class described, the combination of a truck adapted to travel upon a railway track, vertical ways on said truck, a crosshead constituting a drop hammer reciprocatingly mounted in said ways and recessed on its under side to receive the rails of a track, said crosshead having downwardly facing sockets therein at each side of the r cesses, downwardly and inwardly projecting blade-like tools disposed in said sockets in inwardly facing sets, and means for actuating said crosshead.

5. In a machine of the class described, the combination of a railway truck, a drop hammer reciprocatingly mounted thereon, and opposed sets of inwardly facing tools mounted on said drop hammer in a plane transverse to the truck and with the points of said tools directed inwardly, the tools being provided with longitudinal cutters on their faces.

6. In a machine of the class described, the combination of a railway truck, a drop hammer reciprocatingly mounted thereon, and opposed sets of inwardly facing tools mount ed on said drop hammer in a plane transverse to the truck and with the points of said tools directed inwardly.

In a machine of the class described, the combination of a truck, a crosshead constituting a drop hammer reciprocatingly mounted on said truck, andsets of tools mounted on said truck in inwardly inclined and inwardly stepped relation, said tools having longitudinal cutters on their faces.

' In a machine of the class described, the combination of a truck, a crosshead constituting a drop hammer reciprocatingly mounted on said truck, and sets of tools mounted on said truck in inwardly inclined and inwardly stepped relation. 7

9. In a machine of the class described, the combination of a truck, a crosshead constituting a drop hammer reciprocatingly mounted 011 said truck, and sets of tools mounted on said truck in inwardly inclinedrelation, said tools having longitudinal cutters on their faces.

10. In a machine of the class described, the

combination of a truck, a crosshead constituting a drop hammer reciprocatingly mounted on said truck, and sets of tools mounted on said truck in inwardly inclined relation.

11. In a machine of the class described, the combination of a railway truck, a drop hammer reciprocatingly mounted thereon, and sets of tools arranged in oppositely facing inclined relation, the points of the tools being arranged in stepped relation.

12. In a machine of the class described, the combination of a railway truck, a drop hammer reciprocatingly mounted thereon, and sets of tools arranged in oppositely facing inclined relation;

13. In a machine of the class described, the combination of a truck, a crosshead constituting a drop hammer reciprocatingly mounted on said truck, and tools mounted on said truck in inclined stepped relation, said tools having longitudinal cutters on their faces.

14. In a machine of the class described, the combination of a truck, a crosshead constituting a drop hammer reciprocatingly mounted on said truck, and tools mounted on said truck in inclined stepped relation.

15. In a machine of the class described, the combination of a railway truck, a drop hammer reciprocatingly mounted thereon, and tools mounted on said drop hammer with the points of the tools arranged in stepped relation. v

In witness whereof I have hereunto set mv hand.

CORWILL JACKSON. 

